Bug 898955 - zotero Library navigation pane draws unusual borders. r=dao
Bug 906837 - Add mach command for running webapprt chrome tests. r=adw, r=gps
Bug 874425 - Add more logging to attempt to find out source of negative durations under Windows. r=yoric
Bug 896566 - Update testClearPrivateData for the new about:home (r=margaret)
Merge m-c to fx-team.
Bug 906711 - Search buttons don't indicate the search engine. r=lucasr
Bug 906221 - [Fig] AboutHomeTest.updateBookmarks uses incorrect reflection. r=margaret
Bug 907559 - Update the PGO profile to open and close tabs between test pages. r=ted

--HG--
extra : rebase_source : 525887cb80092f795f0026aaf0fee8b4f559ea55
Bug 894048 - RemoveAllTabsBut should use {animate: true} when closing tabs. r=ttaubert

--HG--
extra : rebase_source : 35d7438eb53d6cdf9a40be6f5ec1a880748b81a2
Merge fx-team to m-c.